Fix the check command
We have a check command in the documentation. But it's broken:
TASK [Check that a SSH connection to autodeploytest@autodeploytest.alwaysdata.net can be made] ***********
fatal: [autodeploytest]: FAILED! => {"msg": "The conditional check 'alwaysdata_account_ssh_test.stdout == \"test\"' failed. The error was: error while evaluating conditional (alwaysdata_account_ssh_test.stdout == \"test\"): 'dict object' has no attribute 'stdout'"}